The Model 3142E-PB BiConiLog Antenna is a hybrid antenna that combines innovative design, compact size, and excellent performance with an updated pre-amplifier module. It's simplified design allows users to measure a frequency range of 30 MHz to 6 GHz in one sweep, thus eliminating the need for multiple antennas and a complicated lab set-up. Any possible mismatch between antenna and the pre-amplifier is taken into account in the antenna factor. Please note, the 3142E-PB is not intended for RSE testing of intentional radiators.